Sliver roll forming and delivery apparatus



R E S A R F s G.

SLIVER ROLL FORMING AND DELIVERY APPARATUS Filed Fb. '5,' 194e Patented Dec. 24, 1946 UNITED STATES PATENT vOFFICE Gordon 'Scott Fraser, Arbroath, Angus, Scotland, assignor to Douglas Fraser Sons Limited, Arbroath, Angus, Scotland, a` corporation of Great Britain and Northern Ireland Application February 5, 1946,' Serial Nol^645637- In Great Britain December 27, 1944 s clama-'(01. 19-158) This invention relates to improvements in apparatus whereby sliver, for example, sliver of 'bast libres, such as jute, is wound into rolls and the completed rolls are delivered one at a time to a receiver.

In one such construction in which the sliver is wound between two end discs each unitary with a half arbor, on completion of the roll, arms carrying the end discs are swung apart, thereby withdrawing the half arbors from the roll, which rolls down an inclined track to a receiving station, while the discs and half arbors return to starting position for the winding of a fresh roll.

An object of the invention is to guide the roll in its travel along the inclined track so that the roll is prevented from tilting or assuming a position oblique to the position it is to occupy at the receiving station.

With the said object I dispose at-opposite sides of the inclined track guide members spaced apart a slightly greater distance than the width of the roll, said guide members being formed by plates, bars or the like constituting upstanding arms of a loaded lever, preferably a spring-loaded lever, said arms being bridged by a cross-stay extending above the inclined track in the path of the roll.

The said cross-stay may be in the form of a plate which may or may not be cambered.

It will be understood that, as the roll travels down the inclined track, it mounts and depresses the cross-stay, thereby rocking the lever in the direction towards the receiver, so that in effect, the lever arms travel parallel with the ends of the roll on its way to the receiver.

After the sliver roll leaves the cross-stay, the lever returns to its initial position, the sliver end leading back from the finished roll to the fresh stream of sliver bein-g thrown back in the direction towards the half arbors which are about to begin the winding of a iresh roll.

The single ligure of the accompanying drawing illustrates a sliver roll forming machine, showing in full lines a sliver roll in position immediately prior to ejection and in dot-and-dash lines in position after ejection.

Referring to the drawing, the sliver roll indicated in full lines at A is wound between two end discs, one of which is indicated at I0, each disc being unitary with a half arbor, indicated at II, and carried by a hinged arm I 2, the arrangement being such that, on completion of the sliver roll the hinged arms I2 are swung apart, thereby withdrawing the half arbors II from the roll A which rolls down an inclined track I 3 to a receiving station indicated at I d.

The inclined track is carried by brackets I5 secured to the frame I6.

To guide the roll A in its travel on the inclined track I3, so that the roll is prevented from tilting or from assuming a position oblique to the position it is to occupy at the receiving station I4, there are disposed at opposite sides of the track I3 pivoted guide members constituted by upstanding arms, one of which is indicated at I 1, of a loaded lever. Said lever is pivotally mounted at I8 on the brackets I5 supporting the inclined track I3. Each arm I1 is normally retained in raised position by a spring I9 connected at one end to a bracket I5 and at the other end to an extension I1' of the arm I7.

'Ihe arms I'I are spaced apart a distance slightly exceeding the width of the roll A and are bridged by a cross-stay, in the case illustrated in the :form of a plate 2U extending above the inclined track I3 in the path of the roll A.

It will be understood that, as the roll A travels down the inclined track I 3, it mounts on and depresses the plate 2U, thereby rocking the lever in opposition to the springs I9, so that the upstanding arms I'I swing in the direction indicated by the arrow B.

In order momentarily to retain the arms Il in the lowered position, indicated by dot-and-dash lines, while the roll A settles in its position on the receiver, there is provided on one bracket I5 a pivoted catch lever ZI, the hooked head cf which is normally in the path of movement of a projection or pin 22 on the adjacent arm I1, whereby, as the arm I1 rocks about the pivot I8, the projection 22 tilts the catch lever 2| about its pivot 23 until in the continued movement of the arm I1 the projection 22 becomes engaged in the hooked end of the lever 2 I.

As the roll A passes to its position in the receiving station I4, itdepresses the tail end 2l of the lever ZI to release the catch, whereupon the arms Il under the influence of the spring I9 return to initial position. The roll A is then moved endwise by mechanism which is brought into operation by a tripping -device indicated at 24 and operated in known manner by the pressure of the roll A.

In order to impart an impetus to the roll A to start it on its travel down the inclined track I3, there is provided a lever 25, secured on the pivot 26 of the arm I2, which lever is bent at its free end 25 to lie'across the width of the rollerA.,

As the arms I 2 are swung apart to withdraw the half arbors from the roll A, they are also moved downwardly about the pivots 26 in the direction indicated by the arrow C to drop the half arbors into position to receive the end of the sliver for winding another roll. By this movement of the arms I2 the bent end 25 of the lever 25 is caused to' press against the periphery of the roll A to start it on its travel down the inclined track.

The upstanding arms I1 are guided in raised position by guide bars 21 projecting `from the outer ends of the disc-carryigarms l2 and ex` tending outside the arms I1.

What is claimed is: Y Y

1. In sliver roll forming and delveryapparatus the combination with a receiveniand an inclined track down which the completed roll travels to the receiver, of guide members spaced apart 1 -in lowered position until the sliver roll settles in track.

position in the receiver.

3. The combination claimed in claim 1 including auxiliary means for imparting an impetus t`o the 'sliverroll to start its movement along the GORDON SCOTT FRASER. 

